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This microservice processes kafka events related to challenges and backfills data via V4 Challenge API.

• Processor

• Challenge API

• NodeJS (v12)
• Docker
• Docker Compose
• Kafka

Configuration for the legacy challenge processor is atconfig/default.js.The following parameters can be set in config files or in env variables:

• LOG_LEVEL: the log level; default value: 'debug'
• KAFKA_URL: comma separated Kafka hosts; default value: 'localhost:9092'
• KAFKA_CLIENT_CERT: Kafka connection certificate, optional; default value is undefined;if not provided, then SSL connection is not used, direct insecure connection is used;if provided, it can be either path to certificate file or certificate content
• KAFKA_CLIENT_CERT_KEY: Kafka connection private key, optional; default value is undefined;if not provided, then SSL connection is not used, direct insecure connection is used;if provided, it can be either path to private key file or private key content
• KAFKA_GROUP_ID: the Kafka group id, default value is 'legacy-challenge-processor'
• KAFKA_ERROR_TOPIC: The kafka error topic.
• BUSAPI_URL: Bus API URL
• MAX_RETRIES: the number of max retries; default value: 3
• RETRY_TIMEOUT: The timeout to retry processing the same message
• CREATE_CHALLENGE_TOPIC: the create challenge Kafka message topic, default value is 'challenge.notification.create'
• UPDATE_CHALLENGE_TOPIC: the update challenge Kafka message topic, default value is 'challenge.notification.update'
• RESOURCE_CREATE_TOPIC: the resource create Kafka message topic, default value is 'challenge.action.resource.create'
• AUTH0_URL: Auth0 URL, used to get TC M2M token
• AUTH0_AUDIENCE: Auth0 audience, used to get TC M2M token
• TOKEN_CACHE_TIME: Auth0 token cache time, used to get TC M2M token
• AUTH0_CLIENT_ID: Auth0 client id, used to get TC M2M token
• AUTH0_CLIENT_SECRET: Auth0 client secret, used to get TC M2M token
• AUTH0_PROXY_SERVER_URL: Proxy Auth0 URL, used to get TC M2M token
• V5_CHALLENGE_API_URL: v5 challenge api url, default value is 'http://localhost:4000/v5/challenges'
• V5_RESOURCES_API_URL: v5 resources api url, default value is 'http://localhost:4000/v5/resources'
• V5_CHALLENGE_TYPE_API_URL: v5 challenge type api url, default value is 'http://localhost:4000/v5/challenge-types'
• V4_CHALLENGE_API_URL: v4 challenge api url, default value is 'http://localhost:4000/v4/challenges'
• V4_TECHNOLOGIES_API_URL: v4 technologies api url, default value is 'http://localhost:4000/v4/technologies'
• V4_PLATFORMS_API_URL: v4 platforms api url, default value is 'http://localhost:4000/v4/platforms'
• V5_CHALLENGE_MIGRATION_API_URL: v5 challenge migration API URL, default value ishttps://api.topcoder-dev.com/v5/challenge-migration
• V5_GROUPS_API_URL: v5 groups API URL, default value ishttps://api.topcoder-dev.com/v5/groupsThere is a/health endpoint that checks for the health of the app. This sets up an expressjs server and listens on the environment variablePORT. It's not part of the configuration file and needs to be passed as an environment variable

Configuration for the tests is atconfig/test.js, only add such new configurations different fromconfig/default.js

• MOCK_API_PORT: the mock server port, default is 4000
• WAIT_TIME: wait time used in test, default is 1500 or 1.5 second

You can find sample.env files inside the/docker directory.

To install foreman follow thislinkTo know how to use foreman follow thislink

• http://kafka.apache.org/quickstart contains details to setup and manage Kafka server,below provides details to setup Kafka server in Linux/Mac, Windows will use bat commands in bin/windows instead

• download kafka athttps://www.apache.org/dyn/closer.cgi?path=/kafka/1.1.0/kafka_2.11-1.1.0.tgz

• extract out the downloaded tgz file

• go to extracted directory kafka_2.11-0.11.0.1

• start ZooKeeper server:bin/zookeeper-server-start.sh config/zookeeper.properties

• use another terminal, go to same directory, start the Kafka server:bin/kafka-server-start.sh config/server.properties

• note that the zookeeper server is at localhost:2181, and Kafka server is at localhost:9092

• use another terminal, go to same directory, create the needed topics:bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic challenge.notification.create

  bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic challenge.notification.update

• verify that the topics are created:bin/kafka-topics.sh --list --zookeeper localhost:2181,it should list out the created topics

• run the producer and then write some message into the console to send to thechallenge.notification.create topic:bin/kafka-console-producer.sh --broker-list localhost:9092 --topic challenge.notification.createin the console, write message, one message per line:{"topic":"challenge.notification.create","originator":"challenge-api","timestamp":"2019-05-14T00:00:00.000Z","mime-type":"application/json","payload":{"id":"0fe70d1a-ad3c-4c58-b341-a478145c4747","created":"2020-03-23T13:21:07.729Z","createdBy":"TopcoderService","typeId":"0b2ac310-eaf0-40e3-b66b-37e5e9e09365","track":"DEVELOPMENT","name":"Lets see if this will work 12","description":"test-description","timelineTemplateId":"a93544bc-c165-4af4-b55e-18f3593b457a","phases":[{"phaseId":"a93544bc-c165-4af4-b55e-18f3593b457a","duration":1000000,"id":"607e8f90-1ed6-49a3-b5a2-486b761a3def","name":"Registration","isOpen":false,"scheduledStartDate":"2020-03-14T16:28:39.882Z","scheduledEndDate":"2020-03-26T06:15:19.882Z","actualStartDate":"2020-03-14T16:28:39.882Z","actualEndDate":"2020-03-26T06:15:19.882Z"},{"phaseId":"6950164f-3c5e-4bdc-abc8-22aaf5a1bd49","duration":1000000,"id":"486fc45e-01e1-4a20-bda1-50cff82943db","name":"Submission","isOpen":false,"scheduledStartDate":"2020-03-14T16:28:39.882Z","scheduledEndDate":"2020-03-26T06:15:19.882Z","actualStartDate":"2020-03-14T16:28:39.882Z","actualEndDate":"2020-03-26T06:15:19.882Z"}],"prizeSets":[{"type":"Challenge prizes","description":"desc","prizes":[{"description":"desc-first","type":"first place","value":500},{"description":"desc-second","type":"second place","value":250}]}],"reviewType":"INTERNAL","tags":["Other"],"projectId":8913,"forumId":456,"status":"Draft","startDate":"2020-03-14T16:28:39.882Z","terms":[{"id":"0dedac8f-5a1a-4fe7-936f-e1d04dc65b7d","agreeabilityType":"Electronically-agreeable","title":"Terms & Conditions of Use at TopCoder","url":""}],"endDate":"2020-03-26T06:15:19.882Z","numOfSubmissions":0,"numOfRegistrants":0}}

• optionally, use another terminal, go to same directory, start a consumer to view the messages:bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic challenge.notification.create --from-beginning

• writing/reading messages to/from other topics are similar

Please make sure you installed and configured kafka

Install all dependencies

npm install

Run the lint

npm run lint

Set environment variables for M2M Token

export AUTH0_CLIENT_ID=jGIf2pd3f44B1jqvOai30BIKTZanYBfUexport AUTH0_CLIENT_SECRET=ldzqVaVEbqhwjM5KtZ79sG8djZpAVK8Z7qieVcC3vRjI4NirgcinKSBpPwk6mYYP

Mock server will be started by test tool during testing but for completing local setup please run mock serverin a separate terminal after running tests. Shutdown mock-api for running tests.

npm run mock-api

Run the application

npm start

We will be using mock version of V4 and V5 APIs for local development and testing. You can also configurecorresponding environment variables and point processor to topcoder-dev environment.

1. Make sure that Kafka, mock server are running as per instructions above.

2. Go todocker folder

3. Rename the filesample.api.env toapi.env And properly update the IP addresses to match below environment for the variables ( make sure to use IP address instead of hostname ( i.e localhost will not work)).Here is an example:Please see that 192.168.1.3 is the IP of host machine for docker where we run all the dependencies

KAFKA_URL=192.168.1.3:9092V5_CHALLENGE_API_URL=http://192.168.1.3:4000/v5/challengesV5_CHALLENGE_TYPE_API_URL=http://192.168.1.3:4000/v5/challenge-typesV4_CHALLENGE_API_URL=http://192.168.1.3:4000/v4/challengesV4_TECHNOLOGIES_API_URL=http://192.168.1.3:4000/v4/technologiesV4_PLATFORMS_API_URL=http://192.168.1.3:4000/v4/platformsAUTH0_CLIENT_ID=jGIf2pd3f44B1jqvOai30BIKTZanYBfUAUTH0_CLIENT_SECRET=ldzqVaVEbqhwjM5KtZ79sG8djZpAVK8Z7qieVcC3vRjI4NirgcinKSBpPwk6mYYPAUTH0_URL=https://topcoder-dev.auth0.com/oauth/tokenAUTH0_AUDIENCE=https://m2m.topcoder-dev.com/

4. Once that is done, go to run the following command

docker-compose up

5. When you are running the application for the first time, It will take some time initially to download the image and install the dependencies

• TBD

Test configuration is atconfig/test.js. You don't need to change them.The following test parameters can be set in config file or in env variables:

• MOCK_API_PORT: port of mock api (Default value conflicts with mock api server. So, please shutdown mock api before running tests)
• WAIT_TIME: wait time used in test, default is 1000 or one second

Set environment variables for M2M Token

export AUTH0_CLIENT_ID=jGIf2pd3f44B1jqvOai30BIKTZanYBfUexport AUTH0_CLIENT_SECRET=ldzqVaVEbqhwjM5KtZ79sG8djZpAVK8Z7qieVcC3vRjI4NirgcinKSBpPwk6mYYP

• Start Local services.
• Various config parameters should be properly set.

To run unit tests

npm runtest

To run integration tests

npm run e2e

• TBD

Refer to the verification documentVerification.md

Application is configured to use local mock APs for development and you can point applicationto topcoder dev environment for verification purposes. But, please be aware that you need to use correctkafka message values for verification.

There are some critical issues in dependencies which come from Topcoder and no-kafka libraries. We use latestversions as of now but these issues should be addressed.